LATIN DICTIONARYLexicon Latīnum
adverb

perenne

perenne (not comparable)

Meaning

  1. not comparableall year, year-round
  2. not comparableconstantly, perpetually
    amne perenne latēns Annā Perennā vocor.Hidden perpetually by the current, I am called Anna Perenna. (The ancient Romans celebrated the festival of river goddess Anna Perenna on the Ides of March.)8 CE, Ovidius, Fasti 3.654

pĕrennē, adv., v. perennis
I. fin.

Quick answers

What does perenne mean in Latin?
perenne, a adverb, means “all year, year-round; constantly, perpetually”.